package com.lsf.common.exception;

import com.lsf.common.api.vo.Result;
import lombok.extern.slf4j.Slf4j;
import org.apache.shiro.authz.AuthorizationException;
import org.apache.shiro.authz.UnauthorizedException;
import org.springframework.dao.DataIntegrityViolationException;
import org.springframework.dao.DuplicateKeyException;
import org.springframework.data.redis.connection.PoolException;
import org.springframework.http.HttpStatus;
import org.springframework.web.HttpRequestMethodNotSupportedException;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseStatus;
import org.springframework.web.bind.annotation.RestControllerAdvice;
import org.springframework.web.multipart.MaxUploadSizeExceededException;
import org.springframework.web.servlet.NoHandlerFoundException;

/**
 * 全局异常处理器
 *
 * @author Alexander
 */
@RestControllerAdvice
@Slf4j
public class MiKouExceptionHandler {

    /**
     * 处理自定义异常
     */
    @ExceptionHandler(MiKouException.class)
    public Result handleMiKouException(MiKouException e) {
        log.error(e.getMessage(), e);
        return Result.error(e.getMessage());
    }

    /**
     * 处理自定义异常
     */
    @ExceptionHandler(MiKou401Exception.class)
    @ResponseStatus(HttpStatus.UNAUTHORIZED)
    public Result handleMiKou401Exception(MiKou401Exception e) {
        log.error(e.getMessage(), e);
        return Result.error("401", e.getMessage());
    }

    @ExceptionHandler(NoHandlerFoundException.class)
    public Result handleNoHandlerFoundException(NoHandlerFoundException e) {
        log.error(e.getMessage(), e);
        return Result.error("404", "路径不存在,请检查路径是否正确");
    }

    @ExceptionHandler(DuplicateKeyException.class)
    public Result handleDuplicateKeyException(DuplicateKeyException e) {
        log.error(e.getMessage(), e);
        return Result.error("数据库中已存在该记录");
    }

    @ExceptionHandler({UnauthorizedException.class, AuthorizationException.class})
    public Result handleAuthorizationException(AuthorizationException e) {
        log.error(e.getMessage(), e);
        return Result.noauth("没有权限,请联系管理员授权");
    }

    @ExceptionHandler(Exception.class)
    public Result handleException(Exception e) {
        log.error(e.getMessage(), e);
        return Result.error("操作失败," + e.getMessage());
    }

    @ExceptionHandler(HttpRequestMethodNotSupportedException.class)
    public Result handleHttpRequestMethodNotSupportedException(HttpRequestMethodNotSupportedException e) {
        StringBuilder sb = new StringBuilder();
        sb.append("不支持");
        sb.append(e.getMethod());
        sb.append("请求方法,");
        sb.append("支持以下");
        String[] methods = e.getSupportedMethods();
        if (methods != null) {
            for (String s : methods) {
                sb.append(s);
                sb.append("、");
            }
        }
        log.error(sb.toString(), e);
        return Result.error("405", sb.toString());
    }

    @ExceptionHandler(MaxUploadSizeExceededException.class)
    public Result handleMaxUploadSizeExceededException(MaxUploadSizeExceededException e) {
        log.error(e.getMessage(), e);
        return Result.error("文件大小超出10MB限制,请压缩或降低文本质量");
    }

    @ExceptionHandler(DataIntegrityViolationException.class)
    public Result handleDataIntegrityViolationException(DataIntegrityViolationException e) {
        log.error(e.getMessage(), e);
        return Result.error("字段太长,超出数据库字段的长度");
    }

    @ExceptionHandler(PoolException.class)
    public Result handlePoolException(PoolException e) {
        log.error(e.getMessage(), e);
        return Result.error("Redis连接异常");
    }

    @ExceptionHandler(MethodArgumentNotValidException.class)
    public Result handle(MethodArgumentNotValidException e){
        log.error(e.getMessage(),e);
        return Result.error("必填参数不能为空");
    }

}

